FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2029888969> ?p ?o ?g. }

• W2029888969 endingPage "137" @default.
• W2029888969 startingPage "126" @default.
• W2029888969 abstract "The objectives of this study were: (i) to test whether near infrared reflectance spectroscopy (NIRS) can be used to assess site fertility in sandy and ferralitic soils of the Congo; (ii) to evaluate the comparative advantages of this methodology with respect to classical regressions with chemical and physical analysis of soils; and (iii) to assess the ability of NIRS to predict concentrations of individual nutrients. Sixty-two plots were sampled in 20 selected forest stands with varying wood production. Site indices (Hlim) were estimated from the measured dominant height in the plots. Soil samples (N = 353) were analysed by NIRS, while physical and chemical analyses were carried out on 210 subsamples. Partial Least Squares regression (PLS) was used to model the site index from NIRS, while Variable Importance in Projection (VIP) allowed relating the main explicative frequencies to nutrient availability. A validation was performed based on an independent field trial (not used in the calibration set) in which soils were collected and analysed by NIRS. The measured dominant height growth was compared with the dominant height growth simulated from the site indices predicted using NIR spectra. Multiple regressions between site indices (Hlim) and soil properties failed to explain the variability in Hlim (R2 = 0.36). This variability was better predicted by NIR spectra, with an R2 = 0.64 and a predicted Root Mean Square Error of 7% for the mean value of Hlim. Based on analysis of VIP frequencies, the most important factors determining the site indices were organic matter, phosphorus, CEC, clay content, and pH. The comparison between measured and simulated dominant height in the validation set gave similar R2 (0.61) than in the calibration set. These results demonstrate that mapping of site indices could be performed at an affordable cost in this region. The methodology developed here, which links PLS and VIP to assess the main factors determining soil fertility, is not specific to this study and could be used elsewhere." @default.
• W2029888969 created "2016-06-24" @default.
• W2029888969 creator A5004425623 @default.
• W2029888969 creator A5009082484 @default.
• W2029888969 creator A5009748526 @default.
• W2029888969 creator A5014278425 @default.
• W2029888969 creator A5017661159 @default.
• W2029888969 creator A5030999331 @default.
• W2029888969 creator A5036601399 @default.
• W2029888969 creator A5042240839 @default.
• W2029888969 creator A5048690754 @default.
• W2029888969 creator A5050065571 @default.
• W2029888969 creator A5073213567 @default.
• W2029888969 creator A5074681306 @default.
• W2029888969 creator A5087633928 @default.
• W2029888969 creator A5091629888 @default.
• W2029888969 date "2012-02-01" @default.
• W2029888969 modified "2023-10-15" @default.
• W2029888969 title "Are NIR spectra useful for predicting site indices in sandy soils under Eucalyptus stands in Republic of Congo?" @default.
• W2029888969 cites W1456450653 @default.
• W2029888969 cites W1530376507 @default.
• W2029888969 cites W1583556309 @default.
• W2029888969 cites W1965400136 @default.
• W2029888969 cites W1966114982 @default.
• W2029888969 cites W1967417734 @default.
• W2029888969 cites W1968859579 @default.
• W2029888969 cites W1979907439 @default.
• W2029888969 cites W1982776993 @default.
• W2029888969 cites W1985462743 @default.
• W2029888969 cites W1987084086 @default.
• W2029888969 cites W1989475388 @default.
• W2029888969 cites W1997287413 @default.
• W2029888969 cites W1998053851 @default.
• W2029888969 cites W2001161201 @default.
• W2029888969 cites W2002992273 @default.
• W2029888969 cites W2003269154 @default.
• W2029888969 cites W2004640880 @default.
• W2029888969 cites W2006591997 @default.
• W2029888969 cites W2007365900 @default.
• W2029888969 cites W2016090370 @default.
• W2029888969 cites W2019440557 @default.
• W2029888969 cites W2027944526 @default.
• W2029888969 cites W2032522633 @default.
• W2029888969 cites W2044481392 @default.
• W2029888969 cites W2049657630 @default.
• W2029888969 cites W2051062038 @default.
• W2029888969 cites W2051488724 @default.
• W2029888969 cites W2051574590 @default.
• W2029888969 cites W2055242565 @default.
• W2029888969 cites W2060896115 @default.
• W2029888969 cites W2074254151 @default.
• W2029888969 cites W2079382574 @default.
• W2029888969 cites W2079825175 @default.
• W2029888969 cites W2081013446 @default.
• W2029888969 cites W2081681770 @default.
• W2029888969 cites W2084425270 @default.
• W2029888969 cites W2086364142 @default.
• W2029888969 cites W2086487680 @default.
• W2029888969 cites W2094478485 @default.
• W2029888969 cites W2098722265 @default.
• W2029888969 cites W2102571299 @default.
• W2029888969 cites W2103766443 @default.
• W2029888969 cites W2107445818 @default.
• W2029888969 cites W2112815453 @default.
• W2029888969 cites W2116920396 @default.
• W2029888969 cites W2118201247 @default.
• W2029888969 cites W2126526565 @default.
• W2029888969 cites W2130816405 @default.
• W2029888969 cites W2313639387 @default.
• W2029888969 cites W4230566335 @default.
• W2029888969 cites W4233614475 @default.
• W2029888969 doi "https://doi.org/10.1016/j.foreco.2011.11.012" @default.
• W2029888969 hasPublicationYear "2012" @default.
• W2029888969 type Work @default.
• W2029888969 sameAs 2029888969 @default.
• W2029888969 citedByCount "18" @default.
• W2029888969 countsByYear W20298889692013 @default.
• W2029888969 countsByYear W20298889692014 @default.
• W2029888969 countsByYear W20298889692015 @default.
• W2029888969 countsByYear W20298889692016 @default.
• W2029888969 countsByYear W20298889692018 @default.
• W2029888969 countsByYear W20298889692019 @default.
• W2029888969 countsByYear W20298889692020 @default.
• W2029888969 countsByYear W20298889692021 @default.
• W2029888969 countsByYear W20298889692022 @default.
• W2029888969 countsByYear W20298889692023 @default.
• W2029888969 crossrefType "journal-article" @default.
• W2029888969 hasAuthorship W2029888969A5004425623 @default.
• W2029888969 hasAuthorship W2029888969A5009082484 @default.
• W2029888969 hasAuthorship W2029888969A5009748526 @default.
• W2029888969 hasAuthorship W2029888969A5014278425 @default.
• W2029888969 hasAuthorship W2029888969A5017661159 @default.
• W2029888969 hasAuthorship W2029888969A5030999331 @default.
• W2029888969 hasAuthorship W2029888969A5036601399 @default.
• W2029888969 hasAuthorship W2029888969A5042240839 @default.
• W2029888969 hasAuthorship W2029888969A5048690754 @default.
• W2029888969 hasAuthorship W2029888969A5050065571 @default.
• W2029888969 hasAuthorship W2029888969A5073213567 @default.

• next